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A salt lake, also known as a saline lake or brine lake, is an inland body of water situated in an arid or semiarid region, with no outlet to the sea, containing a high concentration of dissolved neutral salts (principally sodium chloride). Examples include the Great Salt Lake in Utah, and the Dead Sea in southwestern Asia. [36] [52]
Lake ecosystems are a prime example of lentic ecosystems (lentic refers to stationary or relatively still freshwater, from the Latin lentus, which means "sluggish"), which include ponds, lakes and wetlands, and much of this article applies to lentic ecosystems in general.
Limnology (/ l ɪ m ˈ n ɒ l ə dʒ i / lim-NOL-ə-jee; from Ancient Greek λίμνη (límnē) 'lake' and -λογία 'study of') is the study of inland aquatic ecosystems. [1] The study of limnology includes aspects of the biological, chemical, physical, and geological characteristics of fresh and saline, natural and man-made bodies of water.
Lentic systems are diverse, ranging from a small, temporary rainwater pool a few inches deep to Lake Baikal, which has a maximum depth of 1642 m. [10] The general distinction between pools/ponds and lakes is vague, but Brown [9] states that ponds and pools have their entire bottom surfaces exposed to light, while lakes do not. In addition, some ...
The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. [1] In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas that are permanently submerged — known as the foreshore — and the terms are often used interchangeably.
Lake Victoria (elevation 1,134 metres (3,720 ft)), with an area of 68,800 square kilometres (26,600 sq mi), is the largest lake in Africa. It is not in the Rift Valley, instead occupying a depression between the eastern and western rifts formed by the uplift of the rifts to either side.
Zooplanktons are able to move more freely through the limnetic zone than in the littoral zone, both vertically and horizontally. This is because the bottom of a lake's debris and substrates provide rich habitat niches. [6] A limnetic zooplankton population will usually consist of two to four species, each in a different genus. [6]
The profundal zone is the deep zone of a lake, located below the range of effective light penetration.This is typically below the thermocline, the vertical zone in the water through which temperature drops rapidly.